Plowblade



Nov. 6 W23. G. B. GWYNES PLOWBLADE Filed Dec. 12, 1921 Patented Nov. 6,i923.

narran arras GEORGE B. GwYNEs, on ANDnnso'NvrLLn, GEORGIA.

PLOWBLADE.

Application filed December 12, 1921. Serial No. 521,790.

To @ZZ whom t vri-1y concer/n:

Be it known that I, GEORGE B. GwYNEs, a citizen of the United States,residing at Andersonville, in the county of Sumter and State of Georgia,have invented certain new and useful Improvements in Plowblades, ofwhich the following is a specification, reference being had to theaccompanying drawings.

This invention relates to certain improvements in plow blades, and it isan object of the invention to provide a device of this general characterhaving novel and improved means whereby the same is reinforced orstrengthened in a manner whereby the life of the blade is materiallyprolonged.

Another object of the invention is to provide a novel and improveddevice of this general character consisting of a blade having a portionreinforcedV or strengthened, said portion being extended forwardly toprovide an entering nose and wherein a wing isf provided at either orboth sides of said reinforced or strengthened portion,said wingV beingof a thickness less than the thickness of the reinforced or strengthenedportion and of a thickness substantially equal to the thickness of theentering edge of the nose so that said blade and nose will` wear atsubstantially the same ratio so that the general formation of the plowis maintained.

An additional object of the invention is to provide a novel and improveddevice of this general rharacter provided with a forwardly directed noseor extension, the inward or rear portion of which is reduced in width toprovide for clearance so that the desired travel of the blade within thesoil is materially facilitated and wherein the nose is preferably of achisel type to facilitate its penetration within the soil.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of my improved plowblade whereby certain important advantages are attained and the devicerendered simpler, less expensive and otherwise more convenient andadvantageous for use', as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitelyclaimed.

ln order that my invention may be the better understood, l will nowproceed to describe the same with reference to the accompanyingdrawings, where-in: l

`Figure l is a view in perspective of a plow blade constructed .inaccordance with anV embodiment of my invention .and of a subsoiler type;

Figure 2 is a sectional view taken substantially on the line 2-2 ofFigure l;

Figure 3 is a sectional viewv taken substantially on the line 23e-3 ofFigure l;

Figure l is a perspective view of a shovel blade constructed inaccordance with an einbodiinent of my invention; and A Figure 5 is aview in perspective of a turner blade constructed in accordance with anembodiment of my invention.

As disclosed in Figures l, 2 and 3 of the drawings, B denotes a bladeconstructedin accordance withvan embodiment of my invention and which isrolled or otherwise formed in a manner to provide a central andlongitudinally extending rib or corrugation l concave-convex in crosssection with its convex face outwardly or upwardly directed. The rib orcorrugation l has its upper or outer end continued by the stem 2 whichis adapted to be secured to a plow stock in any ordinary or preferredmanner.

The forward or lower end of the rib or corrugation 1 is extended toprovide a nose 3, the free extremity of which is flattened, as at. 4.and provided with a chisel edge 5. The nose 3 gradually decreases' in w'ith from its outer end to the blade proper and this is of materialadvantage in view of the fact that it provides an effective clearancewhile the plow is in use.

T he blade B is preferably rolled and during its production orformation, the wings o are formed. said wings extending outwardly andlaterally from the opposite sides of the rib or corrugation l and are ofa thickness materially less than the thickness of the rib or corrugationl. It is preferred that each of the wings 6 be of a thicknesssubstantially equal to the outer or flattened portion 4 of the nose 3.This is of especial advantage because the forward or working edges 7 ofthe wing 6 will wear backwardly at substantially 'the same ratio as thewear of the fiattened portion 4 so that the life of the blade ismaterially prolonged.

It has also been found of especial advantage to have the chisel edge 5of the flattened portion 4 arcuate in form with the bow extendingoutwardly.` By'this arrangement, it has been iully demonstrated inactual use that the enteiaing nose' 3 is' prevented from Vwearinginwardly or its sides so thatthe nose 3 is at all times inthebestpossiblecondition for working.` 'f A yBy'having the nose 3 reducedrearwardly Y v in width, it has also been established in ae- Ytual useAthat as said'no'seA wears, no inter- Vference' is lhad't@ its efiiciencin enteriner or c r Y b penetrating tliesoil. Y

in iugm@ i, raisons@ anna@ B? of a shovel typeY and whichlisVconstructed inv substantially the saine manner as the bladeBrh'ere'inbe'tore referred to exceptl as tothe designv andconiiguration'of the blade 6.v

The blade 6, as illustrated in Figures Vl, 2

and 3, is ofa typey to particularly adapt theV blade for use as asubsoiler. l f l In Figure 5, I illustrate an embodiment of myvinvention wherein the blade B is of a turnertypeand wherein a singlewing 6 is employed and wherein the rib or corrugation la-is positionedalong a side marginal portion ofthe blade. f

description it isV From the foregoing thought to be Obvious that a plowblade con structed in accordance with my invention is particularly Vwelladapted for use by reason of the vconvenience and facility withwliich'it maybe asseniblfxl-fandA operated, andv it will ceptible ofvsome change and modification `without departing 'from the principlesand spirit thereof and 'ttor thisreas'on I do not wish to be understoodas limiting myself tof` the precise arrangement and formation of theseveral partsherein shownV in carrying out my invention in practiceexcept as here` matter claimed.' l j f 'f Iclaimc.

' As a new article of manuta'cture,a plow blade embodying` areinforcmg`rib oiE -a thickness greater than the thicknessot the remaining'portionof the blade, said rib being extended to provide an entering nose,Y

GEORGE B. Gwrnns.

valso be obviousr that my invention "is susl

